further experiments with lua

further experiments with lua

[Thomas A. Schmitz]

Hi Hans,

I'm doing some further experiments with the utf and lpeg libraries. This 
code fails, and I don't understand why:

local s = "Ä"

print(characters.uccode(s))

mtxrun --script test.lua


./test.lua:3: attempt to index global 'characters' (a nil value)

Thomas
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Re: further experiments with lua

[Hans Hagen]

On 1/9/2019 8:43 AM, Thomas A. Schmitz wrote:
> Hi Hans,
> 
> I'm doing some further experiments with the utf and lpeg libraries. This 
> code fails, and I don't understand why:
> 
> local s = "Ä"
> 
> print(characters.uccode(s))
> 
> mtxrun --script test.lua
> 
> ./test.lua:3: attempt to index global 'characters' (a nil value)
mtxrun has al the basic modules in it but not the character ones 
(thinking of it, i can add an autoload for that, maybe i should do that)

so you need:

require "char-ini"

local s = "Ä"

print(characters.uccode(s))

which will load char-def.lua (you really don't want that in mtxrun.lua 
embedded) and char-ini.lua

Hans

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Re: further experiments with lua

[luigi scarso]

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On Wed, Jan 9, 2019 at 9:47 AM Hans Hagen <j.hagen@xs4all.nl> wrote:

>
> so you need:
>
> require "char-ini"
>
> local s = "Ä"
>
>
also

if not characters then
    require("char-ini")
end
local s = "Ä"
print(characters.uccode(s))

-- 
luigi

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Re: further experiments with lua

[Thomas A. Schmitz]

On 1/9/19 9:47 AM, Hans Hagen wrote:
> mtxrun has al the basic modules in it but not the character ones 
> (thinking of it, i can add an autoload for that, maybe i should do that)
> 
> so you need:
> 
> require "char-ini"

Hans, Luigi,

thanks a lot, that solves it! Maybe autoload or at least a small hint in 
cld-mkiv.pdf?

Thomas
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